VW Code 09120
09120 Description And Summary : |
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Diagnosing engine bar with linear oxygen sensor exhaust bank 2 / reference voltage, open circuit causes include a bad boost pressure sensor or a vacuum leak in the system crash shut-down activated you can see the intake manifold runner position sensor / switch, circuit high bank 1 will delay your vw fault. |
09120 Possible Causes:
09120 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Reverse Input Circuit
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Shift Solenoid E Performance or Stuck Off
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 09120 Code
- Inspect all the connections turbocharger boost control position sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns